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Defernite & Magnesiovesuvianite

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PAV883836

Defernite & Magnesiovesuvianite

Analysed

Description Tabs

Description
Locality: 
Kombat Mine, Grootfontein, Otjozondjupa Region, Namibia
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
2.8 × 2.7 × 1.8 cm
Description

Fantastic magnesiovesuvianite (red) with defernite blades and tinny haussmanite crystals (black).

Magnesiovesuvianite is new for the locality.

Raman and EDS analyzed.

 

Acquired: 
2020
Boxed with Label
Mineral Data
What's on the rock

Defernite

Formula: 
Ca6(CO3)2-x(SiO4)x(OH)7(Cl,OH)1-2x (x<0.5)
Strunz: 
5.BA.25
Crystal System: 
Orthorhombic
Hardness: 
3.0
Type Locality: 
Güneyce-Ikizdere, Rize Province, Black Sea Region, Turkey

Magnesiovesuvianite

Formula: 
Ca19Mg(Al10Mg2)(Si2O7)4(SiO4)10(OH)10
Crystal System: 
Tetragonal
Type Locality: 
Tuydo combe, Lojane, Lipkovo, Republic of Macedonia